/*
 * Thickbox 2.1 - One Box To Rule Them All.
 * By Cody Lindley (http://www.codylindley.com)
 * Copyright (c) 2006 cody lindley
 * Licensed under the MIT License:
 *   http://www.opensource.org/licenses/mit-license.php
 * Thickbox is built on top of the very light weight jQuery library.
 */

//on page load call TB_init
$(document).ready(TB_init);

//add thickbox to href elements that have a class of .thickbox
function TB_init(){
   $("a.thickbox").click(function(){
   var t = this.title || this.name || null;
   var g = this.rel || false;
   TB_show(t,this.href,g);
   this.blur();
   return false;
   });
}

function TB_show(caption, url, imageGroup) {//function called when the user clicks on a thickbox link

   try {
      if (document.getElementById("TB_HideSelect") == null) {
      $("body").append("<iframe id='TB_HideSelect'></iframe><div id='TB_overlay'></div><div id='TB_window'></div>");
      $("#TB_overlay").click(TB_remove);
      }
      
      if(caption==null){caption=""};
      
      $(window).scroll(TB_position);
      
      TB_overlaySize();
      
      $("body").append("<div id='TB_load'><img src='../images/loading.gif' /></div>");
      TB_load_position();
      
      
      
      if(url.indexOf("?")!==-1){ //If there is a query string involved
         var baseURL = url.substr(0, url.indexOf("?"));
      }else{ 
            var baseURL = url;
      }
      var urlString = /\.jpg|\.jpeg|\.png|\.gif|\.bmp/g;
      var urlType = baseURL.toLowerCase().match(urlString);
      
      if(urlType == '.jpg' || urlType == '.jpeg' || urlType == '.png' || urlType == '.gif' || urlType == '.bmp'){//code to show images
            
         TB_PrevCaption = "";
         TB_PrevURL = "";
         TB_PrevHTML = "";
         TB_NextCaption = "";
         TB_NextURL = "";
         TB_NextHTML = "";
         TB_imageCount = "";
         TB_FoundURL = false;
         if(imageGroup){
            TB_TempArray = $("a[@rel="+imageGroup+"]").get();
            for (TB_Counter = 0; ((TB_Counter < TB_TempArray.length) && (TB_NextHTML == "")); TB_Counter++) {
               var urlTypeTemp = TB_TempArray[TB_Counter].href.toLowerCase().match(urlString);
                  if (!(TB_TempArray[TB_Counter].href == url)) {                 
                     if (TB_FoundURL) {
                        TB_NextCaption = TB_TempArray[TB_Counter].title;
                        TB_NextURL = TB_TempArray[TB_Counter].href;
                        TB_NextHTML = "<span id='TB_next'>&nbsp;&nbsp;<a href='#'>Next &gt;</a></span>";
                     } else {
                        TB_PrevCaption = TB_TempArray[TB_Counter].title;
                        TB_PrevURL = TB_TempArray[TB_Counter].href;
                        TB_PrevHTML = "<span id='TB_prev'>&nbsp;&nbsp;<a href='#'>&lt; Prev</a></span>";
                     }
                  } else {
                     TB_FoundURL = true;
                     TB_imageCount = "Image " + (TB_Counter + 1) +" of "+ (TB_TempArray.length);                                 
                  }
            }
         }

         imgPreloader = new Image();
         imgPreloader.onload = function(){      
         imgPreloader.onload = null;
            
         // Resizing large images - orginal by Christian Montoya edited by me.
         var pagesize = TB_getPageSize();
         var x = pagesize[0] - 150;
         var y = pagesize[1] - 150;
         var imageWidth = imgPreloader.width;
         var imageHeight = imgPreloader.height;
         if (imageWidth > x) {
            imageHeight = imageHeight * (x / imageWidth); 
            imageWidth = x; 
            if (imageHeight > y) { 
               imageWidth = imageWidth * (y / imageHeight); 
               imageHeight = y; 
            }
         } else if (imageHeight > y) { 
            imageWidth = imageWidth * (y / imageHeight); 
            imageHeight = y; 
            if (imageWidth > x) { 
               imageHeight = imageHeight * (x / imageWidth); 
               imageWidth = x;
            }
         }
         // End Resizing
         
         TB_WIDTH = imageWidth + 30;
         TB_HEIGHT = imageHeight + 60;
         $("#TB_window").append("<a href='' id='TB_ImageOff' title='Close'><img id='TB_Image' src='"+url+"' width='"+imageWidth+"' height='"+imageHeight+"' alt='"+caption+"'/></a>" + "<div id='TB_caption'>"+caption+"<div id='TB_secondLine'>" + TB_imageCount + TB_PrevHTML + TB_NextHTML + "</div></div><div id='TB_closeWindow'><a href='#' id='TB_closeWindowButton' title='Close'>close</a></div>");      
         
         $("#TB_closeWindowButton").click(TB_remove);
         
         if (!(TB_PrevHTML == "")) {
            function goPrev(){
               if($(document).unclick(goPrev)){$(document).unclick(goPrev)};
               $("#TB_window").remove();
               $("body").append("<div id='TB_window'></div>");
               TB_show(TB_PrevCaption, TB_PrevURL, imageGroup);
               return false;  
            }
            $("#TB_prev").click(goPrev);
         }
         
         if (!(TB_NextHTML == "")) {      
            function goNext(){
               $("#TB_window").remove();
               $("body").append("<div id='TB_window'></div>");
               TB_show(TB_NextCaption, TB_NextURL, imageGroup);            
               return false;  
            }
            $("#TB_next").click(goNext);
            
         }
         
         document.onkeydown = function(e){   
            if (e == null) { // ie
               keycode = event.keyCode;
            } else { // mozilla
               keycode = e.which;
            }
            if(keycode == 27){ // close
               TB_remove();
            } else if(keycode == 190){ // display previous image
               if(!(TB_NextHTML == "")){
               document.onkeydown = "";
               goNext();
               }
            } else if(keycode == 188){ // display next image
               if(!(TB_PrevHTML == "")){
               document.onkeydown = "";
               goPrev();
               }
            }  
         }
            
         TB_position();
         $("#TB_load").remove();
         $("#TB_ImageOff").click(TB_remove);
         $("#TB_window").css({display:"block"}); //for safari using css instead of show
         }
     
         imgPreloader.src = url;
      }else{//code to show html pages
         
         var queryString = url.replace(/^[^\?]+\??/,'');
         var params = TB_parseQuery( queryString );
         
         TB_WIDTH = (params['width']*1) + 30;
         TB_HEIGHT = (params['height']*1) + 40;
         ajaxContentW = TB_WIDTH - 30;
         ajaxContentH = TB_HEIGHT - 45;
         
         if(url.indexOf('TB_iframe') != -1){          
               urlNoQuery = url.split('TB_');      
               $("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>"+caption+"</div><div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton' title='Close'>close</a></div></div><iframe frameborder='0' hspace='0' src='"+urlNoQuery[0]+"' id='TB_iframeContent' name='TB_iframeContent' style='width:"+(ajaxContentW + 29)+"px;height:"+(ajaxContentH + 17)+"px;' onload='TB_showIframe()'> </iframe>");
            }else{
               $("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>"+caption+"</div><div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton'>close</a></div></div><div id='TB_ajaxContent' style='width:"+ajaxContentW+"px;height:"+ajaxContentH+"px;'></div>");
         }
               
         $("#TB_closeWindowButton").click(TB_remove);
         
            if(url.indexOf('TB_inline') != -1){ 
               $("#TB_ajaxContent").html($('#' + params['inlineId']).html());
               TB_position();
               $("#TB_load").remove();
               $("#TB_window").css({display:"block"}); 
            }else if(url.indexOf('TB_iframe') != -1){
               TB_position();
               if(frames['TB_iframeContent'] == undefined){//be nice to safari
                  $("#TB_load").remove();
                  $("#TB_window").css({display:"block"});
                  $(document).keyup( function(e){ var key = e.keyCode; if(key == 27){TB_remove()} });
               }
            }else{
               $("#TB_ajaxContent").load(url, function(){
                  TB_position();
                  $("#TB_load").remove();
                  $("#TB_window").css({display:"block"}); 
               });
            }
         
      }
      
      $(window).resize(TB_position);
      
      document.onkeyup = function(e){  
         if (e == null) { // ie
            keycode = event.keyCode;
         } else { // mozilla
            keycode = e.which;
         }
         if(keycode == 27){ // close
            TB_remove();
         }  
      }
      
   } catch(e) {
      alert( e );
   }
}

//helper functions below

function TB_showIframe(){
   $("#TB_load").remove();
   $("#TB_window").css({display:"block"});
}

function TB_remove() {
   $("#TB_window").fadeOut("fast",function(){$('#TB_window,#TB_overlay,#TB_HideSelect').remove();});
   $("#TB_load").remove();
   return false;
}

function TB_position() {
   var pagesize = TB_getPageSize(); 
   var arrayPageScroll = TB_getPageScrollTop(); 
   $("#TB_window").css({width:TB_WIDTH+"px",left: (arrayPageScroll[0] + (pagesize[0] - TB_WIDTH)/2)+"px", top: (arrayPageScroll[1] + (pagesize[1]-TB_HEIGHT)/2)+"px" });
}

function TB_overlaySize(){
   if (window.innerHeight && window.scrollMaxY || window.innerWidth && window.scrollMaxX) {  
      yScroll = window.innerHeight + window.scrollMaxY;
      xScroll = window.innerWidth + window.scrollMaxX;
      var deff = document.documentElement;
      var wff = (deff&&deff.clientWidth) || document.body.clientWidth || window.innerWidth || self.innerWidth;
      var hff = (deff&&deff.clientHeight) || document.body.clientHeight || window.innerHeight || self.innerHeight;
      xScroll -= (window.innerWidth - wff);
      yScroll -= (window.innerHeight - hff);
   } else if (document.body.scrollHeight > document.body.offsetHeight || document.body.scrollWidth > document.body.offsetWidth){ // all but Explorer Mac
      yScroll = document.body.scrollHeight;
      xScroll = document.body.scrollWidth;
   } else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
      yScroll = document.body.offsetHeight;
      xScroll = document.body.offsetWidth;
   }
   $("#TB_overlay").css({"height":yScroll +"px", "width":xScroll +"px"});
   $("#TB_HideSelect").css({"height":yScroll +"px","width":xScroll +"px"});
}

function TB_load_position() {
   var pagesize = TB_getPageSize();
   var arrayPageScroll = TB_getPageScrollTop();
   $("#TB_load")
   .css({left: (arrayPageScroll[0] + (pagesize[0] - 100)/2)+"px", top: (arrayPageScroll[1] + ((pagesize[1]-100)/2))+"px" })
   .css({display:"block"});
}

function TB_parseQuery ( query ) {
   var Params = new Object ();
   if ( ! query ) return Params; // return empty object
   var Pairs = query.split(/[;&]/);
   for ( var i = 0; i < Pairs.length; i++ ) {
      var KeyVal = Pairs[i].split('=');
      if ( ! KeyVal || KeyVal.length != 2 ) continue;
      var key = unescape( KeyVal[0] );
      var val = unescape( KeyVal[1] );
      val = val.replace(/\+/g, ' ');
      Params[key] = val;
   }
   return Params;
}

function TB_getPageScrollTop(){
   var yScrolltop;
   var xScrollleft;
   if (self.pageYOffset || self.pageXOffset) {
      yScrolltop = self.pageYOffset;
      xScrollleft = self.pageXOffset;
   } else if (document.documentElement && document.documentElement.scrollTop || document.documentElement.scrollLeft ){   // Explorer 6 Strict
      yScrolltop = document.documentElement.scrollTop;
      xScrollleft = document.documentElement.scrollLeft;
   } else if (document.body) {// all other Explorers
      yScrolltop = document.body.scrollTop;
      xScrollleft = document.body.scrollLeft;
   }
   arrayPageScroll = new Array(xScrollleft,yScrolltop) 
   return arrayPageScroll;
}

function TB_getPageSize(){
   var de = document.documentElement;
   var w = window.innerWidth || self.innerWidth || (de&&de.clientWidth) || document.body.clientWidth;
   var h = window.innerHeight || self.innerHeight || (de&&de.clientHeight) || document.body.clientHeight
   arrayPageSize = new Array(w,h) 
   return arrayPageSize;
}
